"That the complex web of life is too improbable otherwise. That camel's already in your tent, btw. See Roger Penrose's books. He has done the calculations."
Math is not science.
Try again: what falsifiable statement does ID make?
Math isn't science? Your science may be math-free but real science is full of it -- according to Lord Kelvin (but perhaps you don't know him) it isn't science without numbers.
ID casts doubt on evolution, if not out disproves it. One need not prove ID to disprove evolution.